Clauson (1972)
An etimological dictionary of pre-thirteenth-century Turkish
p. 267
1 uya:
properly ‘a bird’s nest’; sometimes by extension the resting place or ‘lair’ (properly i:n) of any wild beast. S.i.a.m.l.g. except NW and SW as uya; in the latter languages as yuva which seems to be the old Oğuz/Kıp. form. Türkü viii ff. (a leopard and a deer, see 3 eg . . .) bulıpan uya:sı:ğa:ru: ögi:re: sevi:nü: keli:r ‘having found it they come rejoicing (Hend.) to their resting places’ IrkB 31: Uyğ. viii ff. Civ. karlığaç uyasındakı topraknı ‘the earthy material in a swallow’s nest’ H I 95-6: Xak. xi uya: wakru’l-ṭayr wa ‘uşşuhu ‘the nest (in general) of a bird and its nest in a tree’ Kaş. I 85: xiv Muh. al-‘uşş u:ya: Mel. 73, 8; Rif. 176: Xwar. xiv yuva ‘nest’ Qutb 87: Kıp. xiii al-‘uşş yuwa: Hou. 10, 17: xiv uya: al-‘uşş; thus in the Kitāb Beylik, but our şayx Faxru’l-din said ‘I do not know (any word for) it except yuwa:’ İd. 27; yuwa: al-wakar; and one says kuş yuwası: wakaru’l-ṭayr do. 99; al-‘uşş uya: Bul. 12, 6: xv ‘uşş yuwa/uya Tuh. 25r. 10: Osm. xviii yuwa (? in Rūmī omitted) āşiyāna-i ṭuyūr ‘a bird’s nest’, in Ar. kinn (‘hiding place’), ‘uşş and mafḥaṣ (‘a nest in the ground’) San. 347v. 9 (quotn. Fudūlī).